Oxygen absorber composition, oxygen-absorbing multilayer body, oxygen-absorbing packet, and method for storing article

Abstract

The present invention provides an oxygen absorber composition containing a hydrocarbon resin; an iron particle having an average particle diameter of 1.0 μm or more and 200 μm or less and having a BET specific surface area of 10 m2/g or more; and an aldehyde absorber capable of absorbing at least aldehyde compound, wherein the iron particle contains iron.

1 . An oxygen absorber composition comprising:
 a hydrocarbon resin;   an iron particle having an average particle diameter of 1.0 μm or more and 200 μm or less and having a BET specific surface area of 10 m2/g or more; and   an aldehyde absorber capable of absorbing at least aldehyde compound.   
     
     
         2 . The oxygen absorber composition according to  claim 1 , wherein the aldehyde absorber comprises a basic compound. 
     
     
         3 . The oxygen absorber composition according to  claim 1 , wherein the aldehyde absorber comprises magnesium oxide or calcium oxide. 
     
     
         4 . The oxygen absorber composition according to  claim 1 , wherein the aldehyde absorber comprises at least one derivative selected from the group consisting of a hydrazine derivative, a urea derivative, and a guanidine derivative. 
     
     
         5 . The oxygen absorber composition according to  claim 4 , wherein the hydrazine derivative is at least one selected from the group consisting of an aminoguanidine derivative and a hydrazine salt. 
     
     
         6 . The oxygen absorber composition according to  claim 4 , wherein the aldehyde absorber comprises a carrier that supports the derivative. 
     
     
         7 . The oxygen absorber composition according to  claim 1 , wherein the hydrocarbon resin is at least one resin selected from the group consisting of polyolefin resin, polyester resin, polyamide resin, polyvinyl alcohol resin, ethylene-vinyl alcohol copolymer resin, and chlorine-containing resin. 
     
     
         8 . The oxygen absorber composition according to  claim 1 , wherein the iron particle is a porous-shaped iron particle. 
     
     
         9 . The oxygen absorber composition according to  claim 1 , wherein
 the iron particle is obtained through treatment of an alloy containing the iron and a particular element with an alkali aqueous solution to remove at least a part of the particular element through dissolution out, and   the particular element is at least one element selected from the group consisting of aluminum, zinc, tin, lead, magnesium, and silicon.   
     
     
         10 . An oxygen-absorbing multilayer body comprising a plurality of layers, wherein
 the oxygen absorber composition according to  claim 1  is used for at least one layer of the plurality of layers.   
     
     
         11 . An oxygen-absorbing packet comprising a packet, wherein the packet comprises the oxygen-absorbing multilayer body according to  claim 10  at least as a part of the packet. 
     
     
         12 . A method for storing an article, the method comprising storing an article to be stored by using the oxygen-absorbing multilayer body according to  claim 10 . 
     
     
         13 . The oxygen absorber composition according to  claim 8 , wherein
 the iron particle is obtained through treatment of an alloy containing the iron and a particular element with an alkali aqueous solution to remove at least a part of the particular element through dissolution out, and   the particular element is at least one element selected from the group consisting of aluminum, zinc, tin, lead, magnesium, and silicon.   
     
     
         14 . A method for storing an article, the method comprising storing an article to be stored by using the oxygen-absorbing packet according to  claim 11 .